1
|
Woolman M, Qiu J, Kuzan-Fischer CM, Ferry I, Dara D, Katz L, Daud F, Wu M, Ventura M, Bernards N, Chan H, Fricke I, Zaidi M, Wouters BG, Rutka JT, Das S, Irish J, Weersink R, Ginsberg HJ, Jaffray DA, Zarrine-Afsar A. In situ tissue pathology from spatially encoded mass spectrometry classifiers visualized in real time through augmented reality. Chem Sci 2020; 11:8723-8735. [PMID: 34123126 PMCID: PMC8163395 DOI: 10.1039/d0sc02241a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Integration between a hand-held mass spectrometry desorption probe based on picosecond infrared laser technology (PIRL-MS) and an optical surgical tracking system demonstrates in situ tissue pathology from point-sampled mass spectrometry data. Spatially encoded pathology classifications are displayed at the site of laser sampling as color-coded pixels in an augmented reality video feed of the surgical field of view. This is enabled by two-way communication between surgical navigation and mass spectrometry data analysis platforms through a custom-built interface. Performance of the system was evaluated using murine models of human cancers sampled in situ in the presence of body fluids with a technical pixel error of 1.0 ± 0.2 mm, suggesting a 84% or 92% (excluding one outlier) cancer type classification rate across different molecular models that distinguish cell-lines of each class of breast, brain, head and neck murine models. Further, through end-point immunohistochemical staining for DNA damage, cell death and neuronal viability, spatially encoded PIRL-MS sampling is shown to produce classifiable mass spectral data from living murine brain tissue, with levels of neuronal damage that are comparable to those induced by a surgical scalpel. This highlights the potential of spatially encoded PIRL-MS analysis for in vivo use during neurosurgical applications of cancer type determination or point-sampling in vivo tissue during tumor bed examination to assess cancer removal. The interface developed herein for the analysis and the display of spatially encoded PIRL-MS data can be adapted to other hand-held mass spectrometry analysis probes currently available. Integration between a hand-held mass spectrometry desorption probe based on picosecond infrared laser technology (PIRL-MS) and an optical surgical tracking system demonstrates in situ tissue pathology from point-sampled mass spectrometry data.![]()
Collapse
Affiliation(s)
- Michael Woolman
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada
| | - Jimmy Qiu
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Claudia M Kuzan-Fischer
- Peter Gilgan Centre for Research and Learning, Hospital for Sick Children 686 Bay Street Toronto ON M5G 0A4 Canada.,Arthur and Sonia Labatt Brain Tumor Research Centre, The Hospital for Sick Children Toronto ON M5G 1X8 Canada
| | - Isabelle Ferry
- Peter Gilgan Centre for Research and Learning, Hospital for Sick Children 686 Bay Street Toronto ON M5G 0A4 Canada.,Arthur and Sonia Labatt Brain Tumor Research Centre, The Hospital for Sick Children Toronto ON M5G 1X8 Canada
| | - Delaram Dara
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Lauren Katz
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada
| | - Fowad Daud
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada
| | - Megan Wu
- Peter Gilgan Centre for Research and Learning, Hospital for Sick Children 686 Bay Street Toronto ON M5G 0A4 Canada
| | - Manuela Ventura
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Nicholas Bernards
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Harley Chan
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Inga Fricke
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Mark Zaidi
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Brad G Wouters
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada
| | - James T Rutka
- Peter Gilgan Centre for Research and Learning, Hospital for Sick Children 686 Bay Street Toronto ON M5G 0A4 Canada.,Department of Surgery, University of Toronto 149 College Street Toronto ON M5T 1P5 Canada.,Arthur and Sonia Labatt Brain Tumor Research Centre, The Hospital for Sick Children Toronto ON M5G 1X8 Canada
| | - Sunit Das
- Peter Gilgan Centre for Research and Learning, Hospital for Sick Children 686 Bay Street Toronto ON M5G 0A4 Canada.,Department of Surgery, University of Toronto 149 College Street Toronto ON M5T 1P5 Canada.,Arthur and Sonia Labatt Brain Tumor Research Centre, The Hospital for Sick Children Toronto ON M5G 1X8 Canada
| | - Jonathan Irish
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Robert Weersink
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473
| | - Howard J Ginsberg
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Surgery, University of Toronto 149 College Street Toronto ON M5T 1P5 Canada.,Keenan Research Center for Biomedical Science, The Li Ka Shing Knowledge Institute, St. Michael's Hospital 30 Bond Street Toronto ON M5B 1W8 Canada
| | - David A Jaffray
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada
| | - Arash Zarrine-Afsar
- Techna Institute for the Advancement of Technology for Health, University Health Network 100 College Street, Room 7-207, MaRS Building, Princess Margaret Cancer Research Tower, 7th floor (STTARR) Toronto ON M5G 1P5 Canada +1-416-581-8473.,Department of Medical Biophysics, University of Toronto 101 College Street Toronto ON M5G 1L7 Canada.,Department of Surgery, University of Toronto 149 College Street Toronto ON M5T 1P5 Canada.,Keenan Research Center for Biomedical Science, The Li Ka Shing Knowledge Institute, St. Michael's Hospital 30 Bond Street Toronto ON M5B 1W8 Canada
| |
Collapse
|
2
|
Ren L, Robertson WD, Reimer R, Heinze C, Schneider C, Eggert D, Truschow P, Hansen NO, Kroetz P, Zou J, Miller RJD. Towards instantaneous cellular level bio diagnosis: laser extraction and imaging of biological entities with conserved integrity and activity. Nanotechnology 2015; 26:284001. [PMID: 26111866 DOI: 10.1088/0957-4484/26/28/284001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The prospect for spatial imaging with mass spectroscopy at the level of the cell requires new means of cell extraction to conserve molecular structure. To this aim, we demonstrate a new laser extraction process capable of extracting intact biological entities with conserved biological function. The method is based on the recently developed picosecond infrared laser (PIRL), designed specifically to provide matrix-free extraction by selectively exciting the water vibrational modes under the condition of ultrafast desorption by impulsive vibrational excitation (DIVE). The basic concept is to extract the constituent protein structures on the fastest impulsive limit for ablation to avoid excessive thermal heating of the proteins and to use strongly resonant 1-photon conditions to avoid multiphoton ionization and degradation of the sample integrity. With various microscope imaging and biochemical analysis methods, nanoscale single protein molecules, viruses, and cells in the ablation plume are found to be morphologically and functionally identical with their corresponding controls. This method provides a new means to resolve chemical activity within cells and is amenable to subcellular imaging with near-field approaches. The most important finding is the conserved nature of the extracted biological material within the laser ablation plume, which is fully consistent with in vivo structures and characteristics.
Collapse
Affiliation(s)
- L Ren
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|